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题名: Au38S2(SAdm)(20) Photocatalyst for One-Step Selective Aerobic Oxidations
作者: Li, Zhimin1;  Liu, Chao1;  Abroshan, Hadi2;  Kauffman, Douglas R.3;  Li, Gao1
关键词: Au nanocluster ;  Au-38 ;  singlet oxygen ;  aerobic oxidation ;  photocatalysis ;  sulfoxidation
刊名: ACS CATALYSIS
发表日期: 2017-05-01
DOI: 10.1021/acscatal.7b00239
卷: 7, 页:3368-3374
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: We here report a protocol for the synthesis of Au38S2(SAdm)(20) nanoclusters (-SAdm = 1-adamantanethiolate) with a higher production yield (10%) in comparison to previous reported methods. The photosensitizing properties of the gold nanoclusters are investigated for the formations of singlet oxygen (O-1(2)) using visible light wavelengths of 532 and 650 nm. The formation of O-1(2) was detected by 1,3-diphenylisobenzofuran as the chemical trapping probe as well as direct observation of the characteristic O-1(2) emission (ca. 1276 nm). The efficiency of the O-1(2) formation using the Au38S2(SAdm)(20) nanoclusters is found to be notably higher than that of Au-25(SR)(18) nanoclusters. Finally, selective aerobic oxidations of sulfide to sulfoxide and benzylamine to imine in the presence of oxygen (O-3(2)) and photoexcited Au38S2(SAdm)(20) are well studied. This work demonstrates the promise of Au38S2(SAdm)(20) nanoclusters in the generation of activated singlet oxygen for selective catalytic reactions.
关键词[WOS]: SINGLET OXYGEN ;  OPTICAL-PROPERTIES ;  GOLD NANOCLUSTER ;  GENERATION ;  CLUSTERS ;  PHOTOSENSITIZERS ;  NANOPARTICLES ;  SENSITIZER ;  ENERGY ;  STATE
语种: 英语
WOS记录号: WOS:000401054300034
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152306
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Gold Catalysis Res Ctr, Dalian 116023, Peoples R China
2.Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
3.US DOE, NETL, Pittsburgh, PA 15236 USA

Recommended Citation:
Li, Zhimin,Liu, Chao,Abroshan, Hadi,et al. Au38S2(SAdm)(20) Photocatalyst for One-Step Selective Aerobic Oxidations[J]. ACS CATALYSIS,2017,7:3368-3374.
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